Liquid fuel burner



Nov. 30, 1943.

J. w. WARNER LIQUID FUEL BURNER Filed April 25, 1941 5 Sheets-Sheet 2 1 INVENTOR. I Jozmz W. MBNEB 3 Sheets-Sheet 3 INVENTR. BY r/amv 14114413151245:

J. w. WARNER "LIQUID FUEL BURNER Filed April 23, 1941 Nov. 30, 1943.

Patented Nov. 30, 1943 UNITED STATES PATENT OFFICE LIQUID FUEL BURNER John W. Warner, Topeka, Kans.

Application April 23, 1941, Serial No. 389,927 2 Claims. (c1. 158-75) My invention relates to a liquid fuel burner, and has for one of its objects to provide a simple and an efficient means to produce a perfect combustion of fuel, whereby a minimum supply of fuel is consumed.

A further object of my invention is to provide a simple and effective arrangement whereby the liquid fuel is heated by steam or other heated fluid by discharging the steam along the liquid fuel pipe to Where said pipe enters a fuel chamber, where said steam and liquid fuel is partially atomized prior to entering the passage of the burner body.

A still further object of my invention is to provide a liquid fuel burner body having a jacket surrounding the burner body to receive steam or other heated fluid as preheating means for the fuel along its path to the outlet of the burner.

A still further object of my invention is to provide a valve communicating with each jacket, there being one above and one below the outlet of the burner to serve as means to deflect the fuel selectively from its normal axial flow from the burner.

These and other objects will hereinafter be more fully explained, reference being had to the accompanying drawings, forming a part thereof, and in which like characters will apply to like parts in the different views.

Referring to the drawings:

Fig. 1 is a side view of the burner.

Fig. 2 is a plan view of Fig. 1.

Fig. 3 is an inside plan view of the lower member of the burner.

Fig. 4 is a sectional View takenon line 44 in Fig. 2.

Fig. 5 is a view of the burner at the mouth end thereof.

Fig. 6 is a sectional view taken on line 66 in Fig. 1.

Fig. '7 is a side view of the valve.

Fig. 8 is an end view of Fig. '7, showing the valve Wrench.

Fig. 9 is a sectional view of the valve taken on line 9-9 in Fig. '7, showing the orifice open.

Fig. 10 is a sectional view of the valve, showing the orifice closed.

Fig. 11 is a fragmentary sectional View through the outlet mouth of the burner showing the position of the valves to illustrate one diversion of the burning fuel from its straight normal flow.

As a more concise description of the invention herein disclosed, it will be seen that the burner body consists of upper and lower side members i and 2, respectively, said members being similar with respect to contour of their divergent oppositely disposed edge portions and the outlet mouth or divergent end thereof, each member having flanges 3 outwardly extending from-their edges, and the corresponding or adjacent flanges of the portions being spaced apart to receive a gasket 4 therebetween to render the joint between said body members fluid tight when clamped together by bolts 5 engaging through said flanges. The inner side of each body member has a series of troughs 6 transversely crossing the same and extending from mouth I to the other end of the burner. The walls of the troughs of the upper and lower members of the burner are inparallelism and spaced apart to provide a zigzag passage 8 through the burner, whereby the fuel flow is diverted abruptly at close intervals from the fuel inlet end to the outlet of the said burner, whereby a further agitation of the atomized-fuelis accomplished, and furthermore it-will be seen or other fluid under pressure and at a high degree of temperature is flowed through the burner members, one jacket being placed in the upper and one in the lower side of the burner members, the steam being supplied-through pipes Hl'positioned at the narrow end of the burner, said pipes being connected to a supply pipe, the latter having an appropriate valve to control the fluid flow through said pipe, said supply and valve not shown in the drawings. At the convergent end of burner member I is a chamber H integral with said member, communicating with the said fuel passage through the burner body. The outer end portion of the chamber is cylindrical and threaded internally as at A to engage one end of a nipple l2 screwed therein, while the other end of the nipple has a fitting l3 threadedly engaged thereon, the outer end of which is closed by a head I I that is axially bored and threaded,

' through which an oil or liquid fuel pipe I 5 will engage fluid tight, the inner end of said fuel pipe terminating at its respective end of the nipple, the other end of said pipe l5 being connected to a source of oil supply not shown in the drawings, and likewise a valve to control the oil supply to the burner. The fitting [3 has a lateral pipe It with an appropriate valve not shown to control steam as an atomizing agent for the fuel oil passing through chamber H and from thence through the burner.

To avoid an axial flow through the burner passage, there is provided a slot I! through each apex of the passage walls a spaced distance inward from each end thereof and slanting outward toward the ends of the troughs to divert the fuel flow theretoward, whereby the flow of the fuel to the mouth will be equalized therealong.

Positioned above and below the outlet of the passage of the burner and carried by their respective body members are rockable valves extending across the divergent end of the burner, said valves being oppositely disposed and in parallelism with each other and the outlet of the passage, said outlet functioning as the mouth of the burner, and said valves as diverting means for the fuel to'a desired angle as it leaves the mouth.

Each valve consists of a pair of tubes 18 and 19 respectively, one of which is inserted in the other and adapted to turn therein with a smooth running fit, said tubes each being slotted diametrically as at B to register with each other as an exit for its jacket, the slots extending longitudinally of each pair of tubes and passing therethrough to function as an adjustable orifice, the orifice extending across the outlet end of the burner as shown in Fig. 5. The end of the valve structure is'sealed by closing the end of the outer tube by a head C from which extends a square nut D to be engaged by a wrench 20 as turning means for the valve as a whole, the other end of the valve being made fluid tight by a gland nut 2| threadedly engaging on the outer end of the tube, and having a packing 22 compressed by the gland nut for said end of the outer tube, while the corresponding end of the inner tube extends outward through the gland, last said end of the inner tube being closed by a circular head 23 welded to the end of the pipe, said head having a square nut integral therewith as turning means for the inner tube when a. wrench is applied thereto. It will also be seen that each tube may be turned independently to vary the width of the slots or close the same as shown in Fig. 10. To direct the flow line'of the fuel from the mouth is accomplished by turning the valves with a wrench applied to the nut D, one direction of the fuel flow being shown in Fig. 11, the purpose of which is to deflect a stream of fuel at a desired angle as it leaves the mouth of the burner.

Such modifications may be made as lie within the scope of the appended claims.

Having fully described my invention what I claim as new and desire to secure by Letters Patent is:

1. In a liquid fuel burner, a body having upper and lower members the members having a passage between their confronting sides, the passage extending across the body membersand zigzagged longitudinally of the body and means to secure the members together fluid tight, a mixing chamber at one end of the burner body, and a mouth outlet at the other end each communicating with the passage, means to supply oil and steam into the chamber, a jacket heating means for each member of the body, a rockable valve communieating with each jacket heating means, the valves being positioned at the upper and lower sides of the outlet mouth and having discharge outlets positioned to direct the flow of heating medium obliquely from the mouth of said burner against the mixture of oil and steam discharged from said mouth.

2. In a fuel oil burner, a body for the burner comprised of upper and lower members and means to secure the said members together fluid tight, said members having a passage therebetween for oil and steam, the passage extending across the body to near each side edge thereof, and from end to end thereof, the passage having a series of short bends evenly arranged and oppositely disposed, each bend being on a suitable angle to mix the oil and steam along its path through the passage, a mixing chamber integral with the upper member at one end of the body to communicate with the passage atone end and means to introduce oil and steam into the chamber, the other end of the passage termin ating at an elongated outlet mouth and registering therewith, jacket means to heat the body of the burner along each side of the passage, and valves one above and one below the mouth to direct heated fluid from said jacket means, each of said valves rockably arranged and each having an elongated orifice and means to vary the width of the orifice.

JOHN W. WARNER. 

